Three poles, 800 V rated insulation voltage, and a maximum power loss of 48 W at rated current — that 48 W matters for enclosure heat rise if you pack several breakers in a single cabinet.
The interrupting ratings step down with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 5.1 kA at 690 V. The 250 A continuous rating holds flat from 40 °C through 50 °C, then derates to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. Mounting in a warm enclosure without forced ventilation means you plan for the derated number, not the nameplate. The undervoltage release is not fitted on this variant.